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1 <?php
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2 /*
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3 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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4 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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5 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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6 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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7 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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8 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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9 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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10 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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11 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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12 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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13 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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14 *
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15 * This software consists of voluntary contributions made by many individuals
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16 * and is licensed under the MIT license. For more information, see
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17 * <http://www.doctrine-project.org>.
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18 */
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19
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20 namespace Doctrine\Common\Cache;
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21
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22 /**
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23 * Void cache driver. The cache could be of use in tests where you don`t need to cache anything.
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24 *
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25 * @link www.doctrine-project.org
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26 * @since 1.5
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27 * @author Kotlyar Maksim <kotlyar.maksim@gmail.com>
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28 */
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29 class VoidCache extends CacheProvider
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30 {
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31 /**
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32 * {@inheritDoc}
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33 */
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34 protected function doFetch($id)
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35 {
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36 return false;
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37 }
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38
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39 /**
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40 * {@inheritDoc}
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41 */
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42 protected function doContains($id)
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43 {
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44 return false;
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45 }
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46
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47 /**
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48 * {@inheritDoc}
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49 */
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50 protected function doSave($id, $data, $lifeTime = 0)
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51 {
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52 return true;
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53 }
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54
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55 /**
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56 * {@inheritDoc}
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57 */
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58 protected function doDelete($id)
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59 {
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60 return true;
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61 }
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62
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63 /**
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64 * {@inheritDoc}
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65 */
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66 protected function doFlush()
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67 {
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68 return true;
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69 }
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70
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71 /**
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72 * {@inheritDoc}
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73 */
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74 protected function doGetStats()
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75 {
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76 return;
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77 }
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78 }
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